Letícia holds a BA in Sociology from the University of Brasília and a Master’s in Demography from the University of Campinas. She is a permanent civil servant and has been a specialist in public policy and management since 2002. Between 2002 and 2016, Letícia worked on the management of Brazilian national conditional cash transfer programmes (including Bolsa Família ). As the Director of the Single Registry of Beneficiaries (2009–2012), she was responsible for the national implementation of its seventh iteration.

As the National Secretary for Citizenship and Income (2012–2016), she was mainly responsible for coordinating a national training strategy for municipal and state managers regarding Bolsa Família and the Single Registry.